Europe’s Airbus lost a major order on Wednesday when Dubai’s Emirates airline cancelled its entire purchase of 70 Airbus A350 jets, dealing an unexpected blow to the planemaker and engine maker Rolls-Royce.

The decision cuts the order book for the European company’s newest jet, which is due to enter service in around six months’ time, by around 10 per cent.

“We are confident that we will sell the (production) slots in the coming months,” an Airbus spokesman said. “There’s no impact on the programme as deliveries were scheduled to start at the end of the decade.”

Airbus shares were down 3.3 per cent in early trading in Frankfurt, with the news expected to cast a shadow over two days of briefings for the media at Airbus’ headquarters in Toulouse on Wednesday and Thursday.

Emirates has been pushing for Airbus to upgrade the A380 superjumbo with a more efficient engine, after increasing its total orders for the world’s biggest passenger jet by 50 in November to 140 planes.

The carrier’s chief executive, Tim Clark, said earlier this month that a revamped A380 could have a 10-12 per cent performance improvement and that “we are hoping to move on that pretty soon”.

Emirates is also in the process of firming up an order for 150 of Boeing’s latest jetliner, the 777X mini-jumbo, of which Emirates has ordered 150 worth $76 billion at list prices.

Asked about the A350 order cancellation on Wednesday, an Emirates spokesman said: “The contract which we signed in 2007 for 70 A350 aircraft has lapsed. We are reviewing our fleet requirements.” Airbus said in a statement that it remained “very confident” in the A350 programme and that it expected the A350 order book to grow in 2014.

Britain’s Rolls-Royce, which is the sole engine maker for the A350, said the Emirates decision would result in a £2.6 billion (Dh16 billion) hit to its order book.

“While disappointed with this decision, we are confident that the delivery slots which start towards the end of this decade vacated by Emirates will be taken up by other airlines,” Rolls-Royce said in a statement.